Occupy Wall Street has a how-to manual;,their book The Debt Resistors Operations Manual.
On Page 101, they bandy about the idea of similar action for student loans:
Another possibility would be to organize a critical mass to declare bankruptcy on student loans all at once—knowing they will be dismissed, but defiantly insisting in court that the debts are illegitimate and unpayable. These actions would need years of planning, preparation and organization.
That last line is significant. If you’re one of those people who are still dismissing the Occupy movement —even after the re-election of Barack Obama and after seeing that they are laying out their strategy and tactics for the destruction of the U.S. Economy — please print that out and tape it your bathroom mirror. Occupy is gearing up for "years of planning, preparation and organization."
Occupy Wall Street is in this for the long haul, and right now, they are winning.